Warp stop-motion for looms.



No. 813,309. PATENTED FEB. 20, 1906. P. E. KIP & E. 0. SMITH. WARP STOPMOTION FOR LOOMS.

APPLICATION FILED OUT. 27. 1905.

3 SHEETS-SHEET 1.

INVENTORS M WITNESSES:

FJW; GM mm 7 ATTORNEY No. 813,309. PATENTED FEB. 20, 1906'. P, B. KIP &E. 0'. SMITH. WARP STOP MOTION FOR LOOMS.

APPLICATION FILED OUT, 27. 1905.

INVLNTORS No. 813,309. PATENTED FEB. 20, 1906.

P. E. KIP & E. 0. SMITH. WARP STOP MOTION FOR LOOMS.

APPLICATION FILED OUT, 27. 1905.

5 SHEETS-SHEET 3.

INVENTORS y (5100; a M

J 4. ATTORNEY UNITED STATES FREDERIC E.

OF CENTRAL FALLS,

PATENT OFFICE.

KIP. OF MONTCLAIR, NEW JERSEY, AND EDWIN C. SMITH, RHODE ISLAND,ASSIGNORS TO KlP-ARMSTRONG COMPANY, OF NEW YORK, N. Y., A CORPORATION OFNEW YORK.

WARP STOP-MOTION FOR LOOIVIS-v Patented Feb. 20, 1906.

Application filed October 27 1905. Serial No. 284,692.

To all whom zit may concern.-

Be it known that we, FREDERIo E. KIP, a resident of Montclair, county ofEssex, State of New Jersey and EDWIN C. SMITH, a resident of CentralFalls, State of Rhode Island, citizens of the United States, haveinvented certain new and useful Improvements in Warp Stop-Motions forLooms, of which the following is a specification.

Thepresent invention relates to a warp stop-motion for looms of the typedescribed in the application for Letters Patent of Frederic E. Kip andFrederick M. Armstrong, Serial No. 248,251, filed March 3, 1905, inwhich the heddles perform their usual functions in the formation of theshed and additionally serve as gravity drop devices to close acontrolling-circuit to set in operation the stopping mechanism. Theinvention illustrated in that application comprises an electric circuitwhich is alternately opened and closed at two points during the normalrunning of the loom, one of said points being within the harness-frameand controlled by the tension of the warp-threads, and the other aswitch outside the harness-frame and actuated in synchronism with saidframe, the parts bein s0 related that when the circuit is closed wit theframe it will be opened at the point outside thereof, and vice versa,the circuit being closed at both points when a warp-thread breaks orbecomes unduly slack,

to thereby set in operation the stoppin mechanism. In the specificembodiment o the invention the switch-levers were shown as mechanicallyconnected to the harnessframes in such manner as to derive theirmovements from said frames. In the embodiment of the present inventionthe switch is not so connected, but is actuated directly by thepattern-forming mechanism. x For the purpose of illustration and as apreferred use of the invention we have illustrated the same inconnection with a dobby or headmotion loom. In the application of ourinvention to this type of loom the switch is so placed as to be directlyunder the control of the jacks or some other element of theharness-actuating mechanism.

, The invention will be understood by ref- '-erence"to the accompanyingdrawings, in

which Figure 1 is a side elevation of a loom, showing the application ofthe invention thereto, the loom-frame being broken away at parts. Fig. 2is a detail view showing one of the jacks with its actuating mechanismand the relation of the switch thereto, the circuit being showndiagrammatically. Fig. 3 is a face view of the multiple-contact switch.Fig. 4 is a vertical section on the plane of the line 4 4 of Fig. 3.Figs. 5, 6, and 7 are detail views showing a part of the pattern-formingmechanism, illustrating various modifications in the manner of applyingthe invention; and Fig. 8 is a vertical sectional view of theharness-frame.

Similar reference-numerals indicate similar parts in the several views.

Referring to the drawings, the numeral 1 designates the frame of theloom; 2, the lay; 3, the breast-beam; 4, the shipper-lever; 5, thewarps; 6, the warp-beam; 7, the reed, and 8 the harness-frame. Theseparts are of the usual construction and arrangement in looms. Theshipper-lever 4, as usua in a bracket forming an extension of thebreast-beam and enga es a shoulder when the loom is runnin hen freedfrom this shoulder, a sprin s 'fts said lever to stop the loom, all'aswill e readily understood.

In order to set the shipper-lever free, an electromagnet 9 is mountedbelow the breastbeam,on a bracket secured by suitable means to theloom-frame, and its armature-lever 10, which is fulcrumed on saidbracket, is connected by a link or wire rod 11 to one end of a dag er12. Pivotally su ported by pins or stu s in a bracket secure to theloom-frame is a knock-off lever 13, attached at its lower .75 occupies aslot end to the dagger 12 and its upper end adaptother vibrating ormovingpart of the m:

When the magnet 9 is energized, the dagger is moved into such positionas to be impinged upon by the face of said bunter, thereby moving theknock-ofl lever to effect the release of the shipper-lever. In thedrawings we have shown a form of bunter described in the patent of AllanA. Johnson, No. 778,132, dated December 20, 1904, as'such bunter reventsthe operative from interfering witht e efiectiveness of the knock-offmechanism. Any

other suitable form of bunter, however, may be used.

In order to energize the magnet 9 when a warp-thread breaks or becomesunduly slack,

a controlling-circuit is employed, said circuit including the mainloom-switch 16, a cutout switch 17, the coils of magnet 9, a switch 18,the latter outside of the harness-frames and controlled directly by theharness-actuto ating mechanism, and compound terminals 19 within theharness-frames. The circuit when the loom is running is closed throughthe switches 16 and 17 and normally opened and closed alternatelythrough the switch 18 15 and compound terminals 19. During the normaloperation of the loom when the circuit isclosed through a given compoundterminal-that is, when the frame is at or near its uppermostposition-the circuit will be broken at the switch 18 for that particularframe, and, vice versa, when closed at the switch 18 the circuit will beopened at the corresponding compound terminal 19that is, when a frame isat or near its lowermost 2 5 position.

The harness-frames, of which there may be any desired number, may be ofthe usual construction and supported in any wellknown and usual manner.In Fig. 1 five frames are shown; but for convenience of illustration wehave shown in the remaining figures but a single frame, it beingunderstood that the frames are similar in constructions in all respects.As shown in the draw- 3 5 ings, they are connected by straps 20 to jacks21 of the pattern-forming mechanism. Rigidly secured to the side bars ofeach frame is a cross-bar 22, and above said bar, near the upper part ofthe frame, is a compound terminal 19, also rigidly secured to the sidebars. Said compound terminal is of well-known construction and comprisesan electrically-conduotivebody member 23, into'the upper edge of whichis set a blade 24, also of conductive 5 material; properly insulatedfrom the body member. The. heddles may be of any form adapting them to"the desired purpose. As shown in Fig. 8 they are made of thin metallicstrips having a.threada erture 24 and slots 25 andv 26, through whichslots the bar 22. and compound terminal 19, respectively, are passed.The thickness of the .body members 23 of the compound. terminals and thebars 22 are substantially equal to the width 5 5 of the slots 25 and 26,so as to sustain the heddles in proper vertical position and in sidecontact with said members and bars, and the length of said slots issuch-'as to permit of a slight vertical movement of the'heddlesindependently of *the movement of the frames. The upper wall of slot 26is referably inclined to insure good electrical engagement with theblade 24 of the compound terminal. The lower slot 25 should be of suchlength and so disposed that there is greater possibility of movement ofthe cross-bar within said slot to insure the contact of thecompound-terminal blade 24 with the heddle.

When the 100m is runnin normally, the heddles will act as usual for t eformation of the shed.' When a harness-frame rises, the tension of thewarp-threads draws the heddles downward and into electrical engagementwith the compound terminal. When the harness-frames are lowered so far'asto depress the threads which each controls below their normal level,then the threads which are intact or unbroken raise their heddles andsupport them out of electrical en agement wlth the compound terminal.If, owever, one of the war -threads is broken, then its heddles willfall into electrical engagement with the compound terminal, and when theframe containing the broken thread is at or near its lowermost ositionthe circuit will be closed not only through the compound terminal ofthat frame, but also throu hgthe switch 18tliat is, during thenormarunning of the loom when the circuit is closed through the compoundterminal of-a given frame by the u ward movement ofthe frame it must bebro en at its correspondi-n point at the switch 18, and, conversely,when roken throu h the compound terminal the circuit must e closed atthe corresponding point in the switch 18. v

For the purpose of, actuating the switch 18 we have shown it so.disposed as to be con,-

I trolled by the pattern-forming or harness-actuating mechanism of adobb-loom, and as this type is well known. a brie description, of the partsessential to the carrying out of our invention will be sufficient.

Referring more articularly to Fig. 2, we have shown one a aptation ofthe invention in which the switch is actuated: directly by the movementof the 'acks. In this figure we have shown one Of 'llllfi jacks 21, inconnection with its harness-frame, all ofthe 'acks being so mounted asto rock on the ro 21. The mechanism for eifgectingthe movements ofthejacks, and consequentlythe. corresponding frames, comprisestwooppositelyrotating toothed rolls 27 and 28, (01 cylinders, as theyare generally termed,) adapted at the proper time to impart ahalf-rotation to a gear 29, there being one such gear for each jack 21,and the toothed rolls 27 and 28. being of such len th as to serve forall the gears 29. The toot ed rolls 27 and 28 are connected by a trainof gears to the main driving-shaft of the loom, the train being soroportioned as to roperly time said ro ls he teetlf on the ro ls 27 and28 do not extend continuously about the peripheriesthereof, r2 5 therebeing gaps or mutilated portions 30 and 31, res ectlvely, as indicatedin Fig. 2. These muti ated portions of the rolls are so related thatboth are inward toward the gear 29 or outward away from it at the sametime. 130

Gear 29 is mounted on one end of a lever 32, the outer end of said leverbeing supported on a bar 33 in such manner as to permit said lever toswing upwardly or downwardly for the purpose of bringing the gear 29into engagement either with the roll 27 or the roll 28. The desiredshiftin of the lever 32 is effected by the chain of r0 ls 34, which aredriven preferably by intermittent gearing of the well-known Geneva stoptype. As will be understood, there is not an individual chain for eachharness-frame or for each jack, but one chain for all, the roll-spindlesbeing of such length as to receive a number of rolls. The rolls 34 aredisposed according to the desired shed formation, spacing-sleeves beinginserted on the spindles where rolls are omitted-as, for instance, at35. Fig. 2 shows twelve spindles on the chain, eight with rolls thereonand four without rolls, adapted to actuate one of the jacks 21. Thechain is so moved that when the mutilated portion of either roll 27 or28 is toward the gear 29 then there is beneath the bearing 36 on thelever 32 either a roll 34 or an empty, spindle. When the former occurs,the lever 32 will be raised, so as to move gear 29 into engagement withroll 27 which is continuously rotated in the direction of the arrow (1.Should there be no roll, as at 35, then as soon as its em ty spindlecomes under the bearing 36 the ever 32 will drop, if it has been raisedby a roll next preceding, or will not be raised, but permitted to remaindown, thus causing the gear 29 to engage the toothed roll 28, which iscontinuously rotated in the direction of the arrow 1) or opposite tovthe direction of rotation of the roll 27. These rotary movements of thegear 29 are communicated to the corresponding jack 21 through a link 37,connected atone end to said jack and at the other to a crank-pin 38 onthe gear 29.

The gear 29 is mutilated at 39, and a tooth is also omitted at the point40. The ratio of the number of teeth in the rolls 27 and 28 and in thegear 30 and the relation of the teeth to the mutilated portions of theirperipheries are such that engagement of the gear 29' with either theroll 27 or 28 causes only a half-rotation of the gear 29. In theposition shown in Fig. 2 the gear 29 has just been raised into positionto mesh with the roll 27, the corresponding harness-frame 8, connectedto the jack21, being at its uppermost position. The gear 29 will then berotated in a right-handed direction through substantially one hundredand eighty degrees or until the mutilated portion 39 thereof is broughtdiametricall opposite to the position indicated in said gure. Thecrankin38 will therefore be thrown through one undred and eighty degrees,shifting the link 37 and the jack 21 in the direction of the arrow 0 tothe positions indicated in dotted lines, thus lowering the correspondingharness-frame 8. When the gear 29 is in mesh with the roll 28, then thelatter will be rotated through substantially one hundred and eightydegrees in a lefthanded direction, so as to shift the link 37 and itsconnected jack 21 to the position shown in full lines, thus raising thecorresponding harness-frame to its uppermost position. Should there besuccessive rolls 34 on the pattern-chain, then the frame will be held inthe position to which it was moved by the first one of the rolls 34-that.is, its uppermost position. Similarly, should there be successivevacant spaces on the chain the frame will be held in its lowermostposition. When a roll alternates with a vacant space, then the gear 29will be alternately moved into mesh withthe rolls 27 and 28, or, inother words, alternatel lowered and raised.

In order that t e switch 18 ma act in synchronism with the movements 0the frames, we have illustrated several simple, effective, and preferredarrangements whereby we utilize the movements of parts of theharnessactuating mechanism for directly actuating or controlling saidswitch. Thus in Fig. 2 the switch 18 is so disposed as to lie in thepath of the jacks 21 so as to close the circuit at said switch when thecorresponding harness-frame is lowered, it being remembered that at thattime during the normal running of the loom the circuit is broken at thecompound terminal 19 by reason of the tension of the warp-threadsraising the heddles out of contact with the blade 24 of said tei'ininal.A convenient form of switch that may be used in this connection is shownin detail in Figs. 3 and 4. It comprises a suitable casing 41, to whichis secured two blocks 42 and 43 of insulating material. To the block 42are secured spring contact-arms 44, one for each of the jacks 21, and tothe block 43 is secured a contact-strip 45. The block 43 may be onepiece extending from one end to the other of the casing, but cut away atthe top to provide a clearance for the springcontacts 44, or there maybe two individual supports, one at each end of the casing, between whichthe strip 45 extends. The strip 45 is shown flanged or angular forstiffness, as it is quite long in some cases. The main circuit-wireenters the casing through an insulated bushing and is connected to thestrip 45 by means of a binding-,post, and the separate harnesscircuit-wires 15 are connected by individual binding-posts .to theirrespective spring contact-arms 44, the circuit being grounded in theloomframe at any convenient point. Slidably mounted in hearings in thecasing 41 are pins 46, preferably of non-conductive material, said pinsat their inner ends bearing against the springcontacts 44 and theirouter ends projecting outside of the casing in position to be acted uponwhen the jacks 21 are moved to lower the harness-frames, as indicated inFig. 2. As the jacks on a dobby are from threeeighths to one-half inchapart, a multiple plunger-switch of the character described is efficientfor the purpose, not liable to derangement, and, moreover, is extremelysimple and inexpensive to manufacture.

The operation of the mechanism above described and the relation of theswitch 18 to the movements of the harness-frames will be readilyunderstood. As a given harnessframe 8 is lowered to move the war threadsto form the lower plane of the she the tension of said warp-threads ifunbroken will hold the heddles through which they pass out of contactwith the blade 24 of the compound terminal, thus opening or breaking thecircuit at that point. At the same time, however, the corresponding jack21- will contact with the projecting end of a pin 46, so as to force itsspring-contact arm 44 against the stri 45, thus closing the circuit forthat particu ar frame at the switch 18. The reverse condition obtainswhen the harness-frame is at or near its uppermost position. At thattime the tension of the war -threads will hold the heddles in contactwit the blade 24 of the compound terminal, thus closing the circuit atthat point, the circuit being broken through the correspondingspring-contact 44 as soon as the ressure of its jack 21 releases the in46, said pin being then projected outwargly, as indicated in Fig. 4, ythe springarm 44. These 0 erations occur during the normal running ofthe loom for each of the harness-frames, and, as will be readilyunderstood, all frames which are at or near their lowermost positionshaving the circuit closed at the switch 18 and open at the compoundterminal and all frames which are at or near their uppermost positionshaving the circuit broken at the switch 18 and closed at the compoundterminal. The parts described are so constructed and timed for thenormal operation of the loom that a given 'ack 21 does not contact withthe correspon ing pin 46 to close the circuit for that frame at theswitch 18 until after the heddles of the harness-frame to which thatjack is connected have been raised by the tension of the warpthreads outof contact with the blade 24 of the compound terminal. 1n other words,when the loom is running normally the circuit for a given frame shouldnever be closed at the same time through the switch 18 and the compoundterminal. As the frame begins to use no mov ementwill be lmparted to theheddles owing to the slight vertical lay allowed; but as the upwardmovement 0 the frame continues the com ound terminal 19 will engage theupper Wal s of slots 26 in the heddles and the latter will be raisedwith the frame to the limit of its upward movement,

the tension of the threads acting to hold the heddles in electricalengagement with the compound terminal, as above described. When theframes begin to descend, such tension of the warp-threads will bemaintained until at or about the time they reach their normal level,from which point to the lowermost position of the frame the tension ofthe threads will tend to raise the heddles, so as to break theelectrical contact at the compound terminal.

Should a warp-thread break when a given frame 8 is at its lowermostposition, then its heddle will fall and will contact with the blade 24of the compound terminal. The circuit when the frame containing thebroken thread is at that position is then closed both through thecompound terminal and its corresponding spring-contact arm 44 and may bereadily traced from battery through coils of electromagnet 9, stripi45,spring-contact 44, blade 24, through theheddle to the body member 23 ofthe compound terminal to ground. When the electromagnet 9 is thusenergized, the dagger 12 will be moved into position to be impinged uponby. the hunter 14 to effect the stoppage of the loom, as alreadydescribed.

Should a thread break when a given frame is at or near its uppermostposition, its heddle'be'ing already in contact with blade 24, so as toclose the circuit at the compound terminal, will remain in that positionduring the downward movement of the frame; but the stopping mechanismwill not be thrown in operation until the corresponding jack '21 ismoved into such position as to impinge against the pin 46 to force thespring-arm 44 into contact with the strip 45, when the circuit will beclosed at both points. Similarly, if a thread should break when a anintermediate position the circuit will be immediately closed at the comound terminal and the loom will be knocked off when the frame is at ornear its lowermost position.

Althou h we have shown in Fig. 2 a construction in w ich the pins 46 areimpinged upon by the jacks, we do not desire to be limited to thatprecise detail of construction, as it is frame is at I perfectly obviousthat a form of switch may e employed in which the switch-levers may beconnected directly to the jacks, so as to be positively moved in bothdirectionsas, for example, a ty e of switch shown in the saidapplication 0 Kip and Armstrong, referred to at the beginning of thisspecification.

To look the lever 32 in its up or down position, there is provided whatis termed a vibrator 47, at the upper end of which is a lock-plate 48.Connected with the vibrator is an arm 49, the toe of which bears on thehub 50 of the shaft of the roll 28. On this hub is a cam rojection 51,which is circumferentiall in ine with the mutilated portion of the rol28. When, therefore, the rolls 27 and 28 are in position to be engagedby the gear 29, the cam projection 51 has raised the througsubstantially in order to actuate its corre-,

toe of arm 49 and withdrawn the lock-plate 48 from the extremity 32 oflever 32. As soon as the proper meshing of the gear 29 with the roll" 27or 28 is-secured then the cam projection 51 has wiped from under the toeof arm 49, thus permitting the lock-plate 48 to pass either above orbelow the extremity 32 of lever 32, as, the case may be, to hold saidlever in position. The vibrator 47 is actuated by a spring (not shown)to hold it in engagement with lever 32.

In the preceding description the switch 18 is under the control of thejacks. It is, however, within our invention to place said switch underthe immediate control of any other part of the pattern-formingmechanism. Thus in Fig. 5is shown an adaptation of the invention whichcomprises a gear 52, carryin a projection 53 of non-conductive materiaWhich is adapted to engage a corresponding pin 46 of the switch 18 andto force said pin against its spring-contact arm 44 to close the circuitat said switch for a given frame at the proper time. In order to rotatethe gear 52, an idler-gear 54 is mounted between the former and gear 29,these gears being so proportioned that as gear 29 makes itshalf-rotation, as before described, the gear 52 will make less than acomplete rotation. As shown in Fig. 5, the projection 53 is so 1placedthat it reguires a rotation two hundred an seventy degrees sponding pin46.

Fig. 6 illustrates a somewhat similar arrangement, except that the gear52 is replaced by a Geneva stop-motion, a species of intermittentgearing. This comprises a single-toothed wheel 55, fixed. to theidler-gear 54, the tooth 56 being adapted to engage a recess 57 in asector 58, rotatably mounted on a shaft 59. The sector 58 is providedwith a nose 60, which engages a pin 46 of the switch 18 to close thecircuit, the arts being so timedthat the idler-gear 54 will make aproximately one-half rotation to each ha frotation of thegear 29 toeffect the desired contact between the nose 60 and the pin 46.

Fig. 7 illustrates still another arrangement that may be employed inwhich the main cincuit-Wire 15 is connected to a stationary which ismounted a gear 62, said gcar'havin a projection 63 of conductivematerial. he harness circuit-wire 15" in this instance is connecteddirectly to an arm 64, supported in an insulated bearing, said armextending over the-gear 62, so that the projection 63 will contacttherewith when said gear is rotated by the gear 29 through theintermediate idler, 54. The idler-gear 54 in this arrangement must be ofnon-conductive material, preferably fiber, and the shaft 61 will requireinsulation.

In the adaptation of the invention illustrated in Fig. 5 it is to beunderstood that shaft 61, upon eachgear 29 will have a correspondinggear 52 with an 1ntermediate idler 54, in Fig. 6- a corresponding Genevastop, and in Fig. 7 a

corresponding gear 62, and that in all of these forms the parts are sotimed as to break the circuit at the switch when it is closed at theharness-frame-that is, when the corresponding frame is at or near itsuppermost positionand to close the circuit atthe switch when it isbroken at the harness -framethat is,

when the corresponding frame is at or near its lowermost position. Themanner in which the stopping mechanism is set in operation is thereforepreciselythe same as before described in connection with the arran ementillustrated in Fig. 2. The control ing-circuit also includes a cut-outswitch 17, the circuit being closed through this switch during thenormal running of the loom. When the circuit is closed to set inoperation the stopping mechanism, as before described, the shi per-leveris released, and as such lever is s nfted the switch-lever 17 is moved,so as to break the circuit through the switch 17 immediately after theloom has been stopped. When the loom is again set in motion, the breakin the circuit at the switch 17 will be closed.

By the term dobby or head-motion loom we mean any style or type of loomwherein the heddle-frames are operated by a pattern-forming mechanism,such mechanism being known by Various dobbies, head motions," engines,&c.

s l 7) gem-heads,

Being the first, as we believe, to provide an electrical warp-stophaving a switch which is actuated directly by mechanism, we desire toclaim the same broadly without reference to the specific means foraccomplishing the desired result.

What we claim, and desire to secure by Letters Patent, is,-

1. in a war stop-motion for looms the combination 0 acontrolling-circuit for setting in 0 eration the stopping mechanism, aharness. ame having a series of heddles suspended therein, a switchincluded in said circuit, pattern-forming mechanism, and means actuateddirectly by said attern-forming mechanismfor controlling t ebpening andclosing of said switch.

2. in a war "stop-motion for looms the combination of acontrolling-circuit for setting in operation the stopping mechanism, aharness frame having a series of heddles suspended therein, a switchincluded in said circuit, pattern-forming mechanism, andmeanscombination of a controlling-circuit for setnames, such as thepattern-forming IIO ting in operation the stopping mechanism, aplurality of harness-frames each having a ser1es of. heddles therein,circuit-wires leading to each of said frames, a switch included in saidclrcuit comprising contacts correspondlng to the harness-frames,pattern-forming mechanism, and means actuated directly by I saidpattern-forming mechanism for closing the clrcuit through those contactsof which the corresponding frames are at or near their lowermostpositions, and breaking the circuit through those contacts of which thecorrespondlng frames are at or near their uppermost positions.

. 4.. In a war stop-motion for looms the combination 0 acontrolling-circuit for set- .ting in 0 eration the stopping mechanism,a harnessame carrying a contact-bar, said bar being included in saidcircuit, a series of heddles suspended on said bar and controlled by thetension of the warp-threads to break and close the circuit thereat whenthe frame 1s at or near its lowermost and u permost positionsrespectively, a switch inc uded said circuit, and pattern-formlnmechanlsm for directly controlling said switch so that durmg the normalrunning of the loomthecin cult will be closed at the switch when it isbroken at said terniinal and broken at the switch when closed at saidterminal.

5. In a wa stop-motion for looms the combination of acontrolling-circuit for set-Y ting in o eration the stoppin mechanism, a

harnessame having a he dlesupporting bar included in said circuit, saidcircult being closed through said bar by a fallen heddle when awarp-thread breaks or becomes unduly slack, a switch also included insaid 'circuit, and pattern-forming mechanism for directly controllingsaid switch so as to close thejcircuit at sa1d-switch when the frame isat or near its lowermost position.

"6. In a'wa step-motion for looms the combination 0 acontrolling-circuit for setting in operation the stopping mechanism, aplurality of harnessframes, a' switch included in said circuit andhaving contacts corresponding to the harness-frames, pattern-. forminmechanism, and means actuated directl y said attern-forming mechanismfor c osing the circuit of a given frame when said frame is at or nearits lowermost position', and for breaking the circuit when the frame isat or near its uppermost position:

7 In a loom the combination with the patternsforming mechanism, ofmechanism for sto ping the loom, a controlling circuit for sai stopping.mechanism, a switch included erases tern-forming mechanism, of mechanismfor stopping the loom, a controlling-circuit for said stoppingmechanism, a switch included in said circuit, said pattern-formingmechanism comprising a gear-wheel and means for imparting thereto ahalf-rotation to lower or v raise the corresponding harnessframe, a jackconnected to said gear, said switch being so disposed as to becontrolled by the movements of said jack so as to close and break thecircuit at said'switch when the corresponding harness frame is at ornear its lowermost and uppermost positions res ectively. 9. In a wastop-motion for ooms the combination 0 a controlling-circuit for settingin operation the stopping mechanism, harness-frames each having a seriesof heddles suspended therein, a switch included in said circuit, jacksto which said frames are connected, means for" actuating said jacks tolower and raise the frames in the formation of the shed, said switchbein so dis osed as r to be controlled by said jac s too ose and breakthe circuit at said switch when the corresponding frames are at theirlowermost and uppermost positions respectively.

10. In a warp stop-motion for looms the combination of acontrolling-circuit for setting in' operation the stopping mechanism, aplurality of harness framesjeaoh frame havmg a series ofheddlessuspended therein, a switch included in said circuit and havingcontacts corresponding to the harness-frames pattern-forming mechanismcomprising gear -wheels and means for rotating the same, and meansactuated by said gears to control the closing and. opening of thecorresponding switch-'contacts.

In testimony whereof we have hereunto signed our names in the presenceoftwo subscrlbing witnesses. f I

I FREDERIC E. KIP.

- EDWIN 0. SMITH.

Witnesses as to signature of Frederic I Kip:

OLIN A. Fosrnn, I A. S. Win-Mans.- W1tnesses'as to signature ofEdwin C.Smith: v

WILBER- T; RnrNorins', I

MARGARET, 'caaassmn'w.

